利用达曼光栅在空气中形成的坚固多丝阵列。

Robust multifilament arrays in air by Dammann grating.

作者信息

Pushkarev D V, Lar'kin A S, Mitina E V, Zhidovtsev N A, Uryupina D S, Volkov R V, Karpeev S V, Khonina S N, Karabutov A A, Geints Yu E, Kosareva O G, Savel'ev A B

出版信息

Opt Express. 2021 Oct 11;29(21):34189-34204. doi: 10.1364/OE.439229.

DOI:10.1364/OE.439229

PMID:34809215

Abstract

We compare transverse structure evolution and energy deposition into the medium within focused multifilament arrays created using two different types of diffraction optical elements (DOEs): TEM phase plate and a Dammann grating. We show that the employment of the Dammann grating provides a robust way to create regular multifilament arrays, which is far less dependent on laser beam quality than one using the phase plate.

摘要

我们比较了使用两种不同类型的衍射光学元件（DOE）：透射电子显微镜（TEM）相位板和达曼光栅创建的聚焦多丝阵列中横向结构的演变以及介质中的能量沉积。我们表明，使用达曼光栅提供了一种创建规则多丝阵列的稳健方法，与使用相位板的方法相比，它对激光束质量的依赖性要小得多。